htjlbert



A. c'. HULBERT.

.AUTO MOBII.E SIGNAL SWITCH. APPLlCA'liION HLED SEPT.22. I919.1379,9885. Patented May 31,1921.

IN VEN TOR UNITED STATES PATENT OFFICE.

ANSEL G. HULBEBT, OF SAN vFIRAJBTCISCO, CALIFORNIA, ASSIGNOR T0 EDWARDC. STREIOH, M. C. STBEICH, J. E. MANNING, E. E. MULLVAIN, AND VAN A.SHAFER, TRUSTEES FOR THE NATIONAL AUTO SIGNAL COMPANY.

AUTOMOBILE SIGNAL-SWITCH.

Specification of Letters Patent.

Iatented May 31, 1921.

To all whom it may concern:

Be it known that I, ANsEL C. HULBERT, a citizen of the United States,residing at San Francisco, in the county of San Francisco, State ofCalifornia, have invented a new and useful Automobile Signal-Switch, ofwhich the following is a specification in such full and clear terms aswill enable those skilled in the art to construct and use the same.

This invention relates to an automobile signal switch and an object ofthe invention is to enable the driver to indicate on a certain circuitwhich way he intends to turn, and to provide him with a pilot light toshow that his signal is workmg properly.

A further object of the invention is to enable the driver to signaleither a right or left turn or to display a stop signal, as may bedesired.

Other objects of the'invention will appear as the description proceeds.

An embodiment of the invention is shown in the drawings in which thesame reference numeral is applied to the same portion throughout, but Iam aware that there may be modifications thereof.

Figure 1 is a front elevation of the switch,

Fig. 2 is a front elevation of the switch with the front casing removed,and with one of the lamps removed from its socket,

Fi 3 is a back view of the plate for carrymg the lamps, and

Fi 4 is a vertical sectional view of the switcih looking at right anglesto Fig. 1.

The switch is mounted within a box casing 1, which casing is providedwith a cover 2, said cover being secured to the box 1 by means of screws3 and 4. The box 1 has an insulating bushing 5 at its back, throughwhich the electric wires are passed. The insulated block 6 whichsupports the switch contact point and lights, is fitted within thecasing and is prevented from reaching the bottom of the casing 1 bymeans of a ring of insulation 7. This block carries two screws 8 and 9,which screws are also connected to two spring contacts 10 and 11 whichare adapted to touch the center contact on the base of the electric bulb12, only one light being shown in place in the socket.

The lamps are of a well known form hav- 1ng lugs on the side and theyare held in place by means of a flat plate 13, having a hole thereinlarge enou h to pass the plate of the lamp and this plate has notches l4and 15 which permit the lugs on the side of the lamp to pass through;and it has raised portions at 16 and 17 to hold the lamps when turned sothat the lugs will pass under said raised portions.

The lower ortions of this lamp holding base is exten ed as shown at 19.

At the center of the block 6, there is a screw 20 which supports aslotted spring contact arm 21, said arm having a knob 22 for itsoperation. The contact arm may be turned either to the right or left andwill make a contact with the point 19 on either side; or, by reason ofthe slot in said arm, it may be mounted vertically to bring it intocontact with both of the contacts 19. The front of the case is providedwith two raised receptacles 23, 24 within which the lamps extend andwhich receptacles have a colored glass as indicated at 25, 26 toindicate to the user which light is operated.

The screw which carries the knob 22 passes through a slot 27 which slothas a vertical opening at 28 to enable both of the contacts to be madewhen that is desired.

What I claim is as follows, but various modifications may be made in theconstruction shown in the drawings and above particularly describedform, within the purview of my invention.

A switch for signals comprising a base having a pair of plates adaptedto receive the bases of a pair of lamps. supplementary contacts tocomplete a circuit, on said lamps, a switch arm adapted to connecteither or both of the lamp holding plates with an electric circuit and acover plate for the switch base having a segmental slot to permit theswitch to be moved to one side or the other or to be moved to connectboth of the switch points and also having casin with transparent windowsto cover both of the lamps.

In testimony whereof I have hereunto set my hand this 2" day of Sept, A.D. 1919.

ANSEL C. HULBERT.

